What is the difference between Dot Net 4.0 and 4.5 Framework .

As practically the difference between dot net 4.0 and 4.5 are mentioned below-
>> You can compile an application for .NET 4.5 and run it on the 4.0 runtime – that is a new feature of 4.5, that doesn’t exist on 4.0.
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
Thanks,
Jitendra.

Comments or Responses

The two important feature of C#5.0 and .net 4.5 is
1>async
2>await
for further details go through this link
http://stackoverflow.com/questions/12384794/difference-between-net-4-0-framework-and-4-5-framework